OAR recognizes that a project using RTEMS may decide to use a particular release branch and not upgrade to a newer branch that includes new features. The RTEMS Project follows other free software projects and only supports two active branches and the development head with support declining on the older of the two branches. As a support service, OAR offers legacy support with bug fixes for closed branches.

4.8 Release Branch: The current legacy support release is 4.8.4 and addresses over 20 issues which were in the last public release of 4.8.2.

4.7 Release Branch: The current legacy support release is 4.7.5 and addresses over 35 issues which were in the last public release of the last public release of 4.7.3.

4.6 Release Branch: The current legacy support release is 4.6.9 and addresses over 50 issues which were in the last public release of the last public release of 4.6.6.

What is RTEMS?

The Real-Time Executive for Multiprocessor Systems or RTEMS is a open source fully featured Real Time Operating System or RTOS that supports a variety of open standard application programming interfaces (API) and interface standards such as POSIX and BSD sockets. It is used in space flight, medical, networking and many more embedded devices across a wide range of processor architectures including ARM, PowerPC, Intel, Blackfin, MIPS, Microblaze and more. You can obtain commercial support or support via the active community. Major decisions about RTEMS are made by the core developers in concert with the user community, guided by the Mission Statement. We encourage everyone to contribute changes and help testing RTEMS. We provide access to our development sources via a Git Repository (see these Instructions for details). We strive to provide regular, high quality releases, which we want to work well on a wide range of embedded targets using cross development from a variety of hosts including GNU/Linux, Mingw, MS-Windows, FreeBSD, Cygwin, and Solaris.

The RTEMS Project finished another year of Google Summer of Code, with five students successfully completing projects from various areas of RTEMS. The final report with specific project details from each student can be found here for html...